The accuracy difference between a 16" M-Forgery and an AK is not alot. I can give my m4 clone a run for the money with my SAR-1 AK. Against a 20" A2 AR with the longer sight radius, the AR will win big time.
Here is a picture of a few targets last weekend. The range was 100 yards, I was shooting my SAR-1 Romanian AK 7.62x39 Wolf 123gr. HP ammo against my CMMG 16" LE M4 clone in 5.56x45 55gr. Idependence FMJ ammo. These are 5 shot groups open iron sights.